I've heard several very common misconceptions people have about their posture.
Thankfully due to advances in Hanna Somatic Education and neuroscience, more people are accepting the fact that they have the ability to change their posture through diligent awareness and practice. At one time I accepted the idea that I simply had "bad knees," (after all, I'd had 4 knee surgeries!), and one day I would need a knee replacement. On top of that I believed I probably had arthritis, which accounted for my inability to kneel for any period of time. After studying Hanna Somatic Education and regaining a new awareness of my movement, I realized I was wrong on all counts: I'm arthritis-free and more happy kneeling now than sitting in a chair!
Myth #1: Poor posture is hereditary.
Sometimes it seems that way. Mother and daughter have identical posture. The son walks exactly like his dad. But the latest scientific research on "mirror neurons" in the brain, suggests otherwise. Mirror neurons are key neurons in our brains that fire when we watch others perform actions. In working with children I often see an imitation of their parents' posture. We are their first teachers, after all. One young woman I worked with had straight, tall posture until she hit about fourteen years old. Then, under school stress, she began to imitate her mother, slumping forward in a slouched posture. She is now aware of her tendency to slump when stressed (a symptom of the Red Light Reflex), and is able to voluntarily self correct.
Myth #2: Poor posture is the result of weak muscles.
Posture is a learned, habituated way of holding yourself in response to life's stresses. Even in cases of scoliosis, there is an adaptation to a one sided trauma that creates a side bending/twisting. We learn to hold ourselves according to has happened to us and/or what we do every day. That being the case, when our posture is one of imbalance (i.e. muscles too tight, shoulders slumped forward, side-leaning), proper coordination of muscles is thrown off. The end result is unequal control of agonist and antagonist muscles. What is required here is full body, functional re-education of those muscles so that coordination is regained and balanced posture is more easily maintained.
Myth #3: Your posture has "always been that way."
Again, with rare exceptions, posture doesn't happen to you. Our posture is a look into how we adapt to our surroundings. Our posture is a snapshot of our accumulated tension and, in many cases, our attitudes toward life. We are creatures of adaptation, physically and emotionally. If we sit at a desk all day, we will adapt in order to be able to do that all day. Maybe we'll over-arch our lower backs into the Green Light Reflex of forward action. If we are worriers, we will probably tend to hunch our shoulders and slump and get stuck in a Red Light Reflex. This can cause painful neck and shoulder problems. If we have suffered a traumatic accident, we might tend to lean more to one side than the other. This posture can cause sciatica, hip pain, plantar fasciitis and knee pain. It's called the Trauma Reflex. Posture is an on-going, fluid process of being.